Staett



. (No Model.)

T HE Aw TR. mm Mm mm 3.9. H

Patented Mar. 16, 1897,.

INVENTO R BY AT TU RNEY.

us co. Momma. wAswmnvzm. o c.

- cording to my invention.

UNITED STATES PATENT OFFICE.

HEINRICH SCHAFFSTAETT, OF GIESSEN, GERMANY.

SPRlNKLlNG-ROSE.

SPECIFICATION forming part of Letters Patent No. 578,948, dated March16, 1897.

Application filed December 18,1895. Serial No. 572,518. (No model.)

To all whom it may concern:

Be it known that I, HEINRICH SCHAFF- STAETT, a subject of the Emperor ofGermany, and a resident of Giessen, in the Grand Duchy of Hesse,Germany, have invented new and useful Improvem cuts in sprinkling-Roses,of which the following is a specification.

My invention has reference to improvements in sprinkling-roses such asare commonly employed in shower-baths and the like; and it has for itsobjects, first, to cause the stream of water to be more finely divided,while the individual jets are more solid, and, secondly, to cause therose to be rapidly emptied when the water is turned off. Hereto forewhen the water was turned off the portion remaining in the rose and pipedripped slowly through the perforations owing to the entrance of airbeing obstructed by the body of water within the rose.

With the objects above stated in view Iconstruct the rose with one ormore inlets for air, through which the air is drawn into the rose by thesuction produced by the flow of water and mixed with the latter.

The nature of my invention will best be understood when described inconnection with the accompanying drawings, in which Figure 1 representsa central longitudinal section of a sprinkling-rose constructed ac- Fig.2 is a similar View showing my invention applied directly to the usualform of rose.

Similar letters of reference designate corresponding parts throughoutthe views of the drawings.

Referring at present to Fig. 1 of the drawings, the letter A designatesthe bell or body of the rose, closed at its lower end, as usual, byperforated diaphragm a and having attached thereto or formed integraltherewith at its upper end a usual fitting B for attaching it to thewater-supply pipe.

C is the air-tube, opening laterally outward with respect to the fittingand discharging downwardly in the interior of the fitting.

The discharge end of the air-tube is located substantially central withrespect to the bore of thefitting. The bore may be provided with acontracted neck, as usual in injectors, to produce a proper suction.Itis now very evident that the current of water will carry with it aquantity of air dependent on the velocity due to the Water-pressure,which air mixes with the water. When the water is turned off, freeaccess of air is permitted by the inlet-tube C, so that the rose isquickly emptied.

In Fig. 2 I have showna nipple B, adapted to be screwed to a rose ofusual form for the purpose of admitting water and air thereto. In thisinstance the nipple is provided with a water-nozzle w, formed in theupper part thereof, and with lateral air-inlets 0', located above thedischarge end of-the nozzle. This construction produces the same resultas that shown in Fig. 1.

It is evident that many other forms for introducing air into the rosecould be devised. Therefore I do not wish to restrict myself to the formshown.

What I claim as new is- 1. A sprinkling-rose provided with means for itsattachment to a watersupply and formed with an injector operated by theflow of water, for mixing air and water, substantially as described.

2. A sprinkling-rose provided with a water-snpply nozzle extending inthe axial direction of the rose, and lateral air-inlets located abovethe mouth of the nozzle; all acting for the'mixing of air and water,substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

HEINRICH SOHAFFSTAETT.

IVitnesses:

FRIEDRICH OORRELL, MICHAEL ZIMMERMAN.

